AQA GCSE Chemistry Unit 1 C 1: Fundamental ideas: C 1.1. Atoms‚ elements and compounds: * All substances are made up of atoms. * Elements contain only one atom. * Compounds contain more than one atom. * An atom has a tiny nucleus in its centre‚ surrounded by electrons. C 1.2. Atomic structure: * Atoms are made up of protons‚ neutrons and electrons. * Protons and electrons have equal and opposite electrical charges. Protons are positively charged‚ and electrons are negatively
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CHAPTER 4 The Structure of the Atom Resource Manager Section 86A Objectives Activities/Features Section 4.1 1. Compare and contrast the atomic Discovery Lab: Observing Electrical Early Theories of Matter 1 session 1/2 block models of Democritus and Dalton. 2. Define an atom. Charge‚ p. 87 Section 4.2 3. Distinguish between the subatomic Problem-Solving Lab: Interpreting STM Subatomic Particles and the Nuclear Atom 1 session 1/2 block particles in terms of relative charge and mass
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Aliens Exist Just about 500 years ago people believed that the earth was still flat‚ 50 years ago people doubted the existence of an alien life‚ 5 min ago the people of earth believe that aliens existed. Many individuals around the world have reportedly been contacted by extra terrestrial beings. They allege that Earth is currently being visited by several different species of extra terrestrial. These individuals report that extra terrestrials are visiting the Earth because they are interested
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Edible Atom Summary Sulfur Element number 16 on the periodic table of elements is sulfur. Sulfur is known as a brimstone‚ meaning “burning stone.” This is because it is found in deposits near volcanoes‚ and it burns very easily. It is found naturally around hot springs‚ volcanoes and in meteorites. Sulfur is also a mineral that you will find in all the cells of the human body. Sulfide bonds are the key bonds that allow curly hair to stay curly‚ and if you ever get a “perm” they add sulfide bonds
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Does the void exist? One of the main controversies in Pre-socratic philosophy is the dispute of the existence or non-existence of the void. Two groups of philosophers argue this idea. The first group‚ namely Parmenides‚ argues that the void does not exist. This is the opinion of the Monist philosophers. The other group is the atomists who argue this thesis and believe there is a void. This group is primarily represented by the philosophers‚ Democritus and Leucippus. Parmenides argues against
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1. The development of MRI imaging technology is one useful spinoff of basic research into structure of the atom. Research‚ however‚ is expensive. Many people argue that high cost of research outweighs its potential benefits. Provide one argument for and one argument against increasing current funding for atomic-structure research. Use specific examples from this lesson in your answer to support each position. (6 marks) Answer: 2. The emission spectrum of an unknown element contains two lines-one
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The essay written by Kakalios discusses the miniaturization of atoms‚ and if it is possible to shrink a human. The essay has several problems‚ such as including unneeded information throughout the essay and in the conclusion‚ and not having a clear thesis statement. These things put the structure into question. To begin with‚ the essay’s introduction lasts for several pages and does not make the main point clearly known. Instead‚ a comic book character named Dr. Pym is discussed‚ making one wonder
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Lesson 1 Key Questions 1. The development of MRI imaging technology is one useful spinoff of basic research into the structure of the atom. Research‚ however‚ is expensive. Many people argue that the high cost of research outweighs its potential benefits. Provide one argument for‚ and one argument against increasing current funding for atomic structure research. Use specific examples
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1. The following are essential requisites of a negotiable promissory note except a. must be written and signed by the drawer b. must contain an unconditional promise to pay a sum certain in money c. must be payable upon fixed determinable future time. d. must be payable to order or bearer 2. Which of the following is not an essential element of a bill of exchange? a. must be written and signed by the drawee b. must contain an unconditional promise to pay a sum certain in money c. must
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Why is there something rather than nothing? Why do certain things exist? Why are things the way they are? This question‚ “Why not nothing?” asks if it is possible to think of a world where nothing exists. This question is significant because it brings up the idea of conceiving other possible worlds. It gives one the ability of imaging worlds in a different way. Could one picture a world without water bottles? Is it possible for triangles to have more than one-hundred eighty degrees? This question
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